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Table 2 Results of quality assessment of included studies using the Effective Public Health Practice Project (EPHPP) tool

From: Cardiopulmonary resuscitation (CPR) training strategies in the times of COVID-19: a systematic literature review comparing different training methodologies

First Author, Country, and Year

Selection Bias

Study Design

Confounders

Blinding

Data Collection Methods

Withdrawal and Dropouts

Global Rating

Standard versus Non-standard Face to Face CPR Training

 Ko RJM

Singapore, 2018

Strong

Strong

Strong

Moderate

Strong

Moderate

Strong

 Beck S

Germany, 2015

Strong

Strong

Strong

Weak

Moderate

Moderate

Moderate

 Charlier N

Belgium, 2016

Moderate

Strong

Strong

Weak

Strong

Moderate

Moderate

 Rossler B

Austria, 2013

Strong

Strong

Strong

Weak

Moderate

Moderate

Moderate

 Chamberlain D

UK, 2001

Strong

Strong

Strong

Weak

Moderate

Moderate

Moderate

 Choi HS

Korea, 2015

Strong

Moderate

Strong

Moderate

Weak

Moderate

Moderate

Standard versus Hybrid CPR Training

 Nakanishi T

Japan, 2017

Moderate

Moderate

Strong

Strong

Moderate

Strong

Strong

 Heard DG

USA, 2019

Strong

Strong

Strong

Weak

Moderate

Moderate

Moderate

 Reder S

USA, 2006

Strong

Strong

Strong

Weak

Moderate

Moderate

Moderate

Standard versus Online CPR Training

 Todd KH

USA, 1998

Moderate

Strong

Strong

Moderate

Moderate

Moderate

Strong

 Rehberg RS

USA, 2009

Moderate

Strong

Strong

Weak

Strong

Moderate

Moderate

 Beskind DL

USA, 2016

Strong

Strong

Strong

Weak

Strong

Moderate

Moderate

 Todd KH

USA, 1999

Moderate

Strong

Strong

Moderate

Strong

Moderate

Strong

 Ahn JY

Korea, 2011

Strong

Moderate

Strong

Moderate

Moderate

Moderate

Strong

 Kardong-Edgren SE

USA, 2010

Moderate

Moderate

Strong

Weak

Strong

Moderate

Moderate

 Diez N

Spain, 2013

Moderate

Strong

Strong

Strong

Strong

Moderate

Strong

 Ali S

India, 2019

Moderate

Strong

Strong

Moderate

Strong

Strong

Strong

 Isbye DL

Denmark, 2006

Strong

Moderate

Strong

Strong

Strong

Strong

Strong

 Nas J

Netherland, 2020

Strong

Strong

Strong

Strong

Strong

Strong

Strong

 Einspruch EL

USA, 2007

Strong

Strong

Strong

Strong

Strong

Strong

Strong